field size, energy price, and energy source on the breakeven price of corn. We estimated yield response to nitrogen (N) for …

-maximizing nitrogen rates, yields, and net returns for corn grown after corn, cotton, and soybeans. The stochastic response functions were … best. The profit-maximizing nitrogen rates were similar for corn after corn, cotton, and soybeans, but relative to corn …

Soil acidity and cotton yields are influenced by cover crop, nitrogen, and tillage method. Applying half the … recommended lime rate may be possible without reducing cotton yields. Using a nitrogen intensive cover crop and applying less … nitrogen should mitigate the effects on soil acidity and yields. …

Winter legumes can substitute for applied nitrogen fertilization of corn. Stochastic dominance was used to order net … revenues from legume and applied nitrogen alternatives. Stochastic dominance orderings indicate that systems combining vetch … with low applied nitrogen fertilization (50 and 100 pounds/acre, respectively) were risk inefficient. By contrast, vetch …

Potential benefits of variable rate nitrogen application are illustrated and information needs identified. Lower costs …

illustrated that return to VRT and the viable range of spatial variability increased for higher corn and nitrogen prices. …